DNS Gurus

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for *.web.com, web.com, not for mail.tweeny.net

Open Cached · just now
18 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains; preload;
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

1 headers
Content-Encoding
Performance
gzip

Caching Headers

0 headers
No caching headers found

Content Headers

3 headers
Content-Encoding
Content
gzip
Content-Length
Content
4159
Content-Type
Content
text/html; charset=utf-8

Server Headers

0 headers
No server headers found

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
*

Cookies Headers

0 headers
No cookies headers found

Other Headers

7 headers
Date
Other
Wed, 26 Nov 2025 11:38:19 GMT
Dependencies
Other
false
Latest-Version
Other
1202286327
Version
Other
1202286327
X-Dns-Prefetch-Control
Other
off
X-Download-Options
Other
noopen
X-Permitted-Cross-Domain-Policies
Other
none

Recommendations

Add Cache-Control header to optimize caching

Analysis completed in 748ms